Cover for a plate



FIG. 1 is a top plan of a cover for a plate showing my new design;

FIG. 2 is a front elevational view;

FIG. 3 is an enlarged sectional view taken substantially along line 3--3 of FIG. 1;

FIG. 4 is an enlarged sectional view taken substantially along line 4--4 of FIG. 1. 

The ornamental design for a cover for a plate, substantially as shown and described. 